Spool



July 29, 1941.

R. ATWOOD SPOOL Filed Jan. 12, 1940 m '2 llllllllllllll-llb" J INVENTORKW JWMIZW Patented July 29, 1941 SPOOL Rawson Atwood, New York, N. Y.,assignor to Decorated Metal Manufacturing Company, Inc., Brooklyn, N.Y., a corporation of New York Application January 12, 1940, Serial No.313,486

4 Claims.

This invention relates to improvements in spools and more particularlyin textile spools.

It is an object of the invention to provide improved means for fasteninga spool barrel and ends together, minimizing the tendency, particularlyin large spools, of the fiber wound thereon to spread or bow the endflanges away from the barrel.

It is a further object of the invention to provide, in conjunction withthe improved fastening means, reinforcement for the barrel of a spoolmade of pasteboard and stamped metal, or similar materials.

A further object of the invention is to provide, by means of an improvedend fastening construction, a spool which minimizes thread trapping. Inthis aspect the invention constitutes an improvement of the constructiondisclosed in my copending application Ser. No. 290,157, filed August 15,1939.

With these and other objects which will appear in the following fulldescription in mind, the invention consists in the combinations andarrangements of parts and details of construction which will now firstbe described in connection with the accompanying drawing and thenpointed out more particularly in the appended claims.

In the drawing:

Fig. 1 is a side elevation of a spool embodying the invention in apreferred form and with parts progressively broken away to display theconstruction also in a central vertical section;

Fig. 2 is a plan view of the spool of Fig. 1 showing the andconstruction;

Fig. 3 is a cross section taken on the line 33 of Fig. 1;

Fig. 4 is an exploded view showing the parts prior to final assembly ofthe barrel and ends; and

Fig. 5 is an enlarged fragmentary view of a portion of Fig. 1.

Referring to Figs. 1 and 2, the spool comprises a barrel l of pasteboardor like material to which are fastened spool ends 2 and 3, preferablymade of sheet steel, the latter being provided with anti-thread trappingliners 4 and 5 rolled into the barrel ends as at 6 and 1. The spool endsare formed with upset annular grooves 8 adapted to receive the ends ofthe barrel and also the ends of a metal fastening and reinforcing tube 9positioned within the barrel. As best shown in Figs. 2, 4 and 5, themetal of the spool ends is pierced with apertures l0 spaced around theinner edges of the annular grooves 8 and the central fastening member 9is formed with fastening tabs H (see Fig. 4) adapted to pass through theapertures l0 and to be bent over as shown in Figs. 1, 2 and 5 to securethe spool ends to the barrel. The fastening member 9 will normally takethe form of a tube with a butt seam along the line I2 and the seam ispreferably positioned so as to pass through one of the tabs H at eachend so that these tabs, when passed through the respective apertures Ill, tend to hold the tube together at the seam l2. The groove 8 on eachend, 2 or 3, is made wide enough to accommodate both the barrel I andfastening mem-' ber 9-and the compressing action of the groove upon thebarrel is otherwise similar to that to be found in similar constructionsnot employing the fastening member 9.

The invention is illustrated as applied to a spool in which the end 3 isof considerably greater diameter than the other end 2, but is equallyapplicable to spool constructions in which the ends are of the samediameter. The invention is of greatest utility with relatively largespools having wide ends and used with relatively fine, smooth fiberswhich flow and generate considerable pressure against the spool ends.The tolerance in the traverse between ends of the spool is typically ofthe order of of an inch so that any substantial springing apart in thespool end is extremely undesirable. With heavy thread pressures upon'theflange and relatively wide flanges, it will be found that when it isattempted to fasten the ends upon the barrel with 'a central eyelet orrivet such as is illustrated by the abovementioned application, thethread pressing against the surface of the ends has a very considerableleverage, since the spool ends are held together only near theircenters. By employing the fastening member of the present invention,however, I am able to fasten the ends to the barrel at a number ofpoints spaced relatively far from the center of the ends andsubstantially in line with the barrel, thus reducing the leverage, orbending moment due to a given thread pressure and greatly reducing anyspringing of the ends away from the barrel.

With regard to thread trapping, the use of the liners 4 and 5 rolledinto the barrel, as illus- I the slight telescoping of the liners alongthe barrel as the ends are sprung away from each other by the thread,yarn or fiber upon the spool. The fastening member of the invention, byreducing the springing of the ends under pressure, correspondinglyreduces telescoping of the liners along the barrel and accordingly stillfurther reduces thread trapping. The fastening member 9, of tubular formand fitting snugly within the barrel l, furnishes reinforcement of thebarrel in addition to securing the ends thereto and the invention is,accordingly, in this respect an improvement upon that disclosed in mycopending application directed to the tubular reinforcement of textilespools. The method of assembly of the present invention will be readilyunderstood and involves bringing together the barrel assembly, includingthe fastening element 9 and barrel I as shown in Fig. 4, and endassemblies, including the ends 2 and 3 together with their liners 4 and5. The ends are now firmly driven onto the barrel, compressing thebarrel ends within the grooves 8 and bending the tabs I over into theposition of Figs. 1, 2 and 5, so as to hold the ends and barrel securelytogether. The next operation involves rolling the liners into the barreladjacent its ends, thus completing the assembly.

The spool illustrated is shown as having cen tral openings 13 in itsends formed by turning flanges or collars M in the material thereon andadapted to receive an arbor, spindle or the like, If desired, a centralrivet or eyelet (not shown) may be employed similar to that shown in myabove-mentioned application so as to provide a tubular membersurrounding the central opening in the spool and serving as a guide foran arbor or similar member to assist in placing the spool upon the same.

What is claimed is:

1. In a textile spool, and in combination, a tubular barrel ofpasteboard or like material, spool ends for said barrel, a tubularfastening member fitting within the said barrel and attached to saidspool ends at points substantially in alinement with the inner surfaceof said barrel and a relatively thin anti-thread-trapping liningattached to each of the said spool ends and including a collar extendingalong the barrel from the said spool end and substantially flushtherewith.

2. In a textile spool, and in combination, a tubular barrel ofpasteboard or like material, spool ends for said barrel, the materialthereof defining upset annular grooves in alinement with the saidbarrel, and a tubular fastening member fitting within the said barreland attached to said spool ends at points substantially in alinementwith the inner surface of said barrel, the said barrel and fasteningmember being received and compressed within the said grooves.

3. In a textile spool, and in combination, a tubular barrel ofpasteboard or like material, spool ends for said barrel, the materialthereof defining upset annular grooves in alinement with the saidbarrel, a tubular fastening member fitting within the said barrel andattached to said spool ends at points substantially in alinement withthe inner surface of said barrel, the said barrel and fastening memberbeing received and compressed within the said grooves, and a relativelythin anti-thread-trapping lining attached to each of the said spool endsand including a collar extending along the barrel from the said spoolend and substantially flush therewith.

4. In a textile spool, and in combination, a tubular barrel ofpasteboard or like material, spool ends for said barrel, a tubularfastening member fitting within the said barrel and attached to saidspool ends in substantial alignment with the inner surface of saidbarrel and a relatively thin anti-thread-trapping lining attached toeach of the said spool ends and including a collar extending along thebarrel from the said spool end and substantially flush therewith.

RAWSON ATWOOD.

